What to do with your "heavy duty" AA batteries

[geepondy]

They will last over 12 hours at a decent brightness in the Infinity light. In my case, I used the Dorcy heavy duty ones that came with my turtlelite II. I assume they're just regular carbon zinc ones that are the usual standard for the "heavy duty" type.

 

[X-CalBR8]

The only thing you need to watch out for with "heavy duty" batteries is to not leave them in any flashlight that will set up for a period of months because zinc-carbon batteries are much more prone to leak over long periods of time. Heat from the sun ruins zinc-carbon batteries more quickly also, so I wouldn't leave them in a flashlight that will set up in the glove box either. Hope this info helps.